Rendering Content Conditionally in React JS Based on the state

I have a page that renders questions that have been posted. I want to create a button that displays only answered questions based on the state = {isAnswered: true}. Is the state isAnswered is true …

D3 / Canvas: Axis not displayed

i have the following issue: I want to create a simple chart using the d3 library and the canvas rendering. var width = 800; var height = 600; var data = [10, 15, 20, 25, 30]; var chart = d3.select(&…

Three.js + OrbitControls – Uncaught TypeError: Cannot read property ‘addEventListener’ of undefined

I am tryint to use OrbitControls in THREE.js. If I removed the line let cameraControl = new OrbitControls(camera) from below, there will be no error. But now, I have “Uncaught TypeError: Cannot read property ‘addEventListener’ of undefined” I tried to change OrbitControls(camera) to THREE.OrbitControls(camera), and then I had “Uncaught TypeError: THREE.OrbitControls is not a constructor”. I tried to import OrbitControls.js by using <script src=…></script> outside “module”, instead of import {OrbitControls} from …;, but it doesn’t work, I also tried to move let cameraControl = new OrbitControls(camera) to other lines, but also doesn’t work. Any ideas how to fix? Answer let

Post Effects and Transparent background in three.js

Trying to use the transparent background with some post effect like the Unreal Bloom, SMAA and Tonemapping provided in the examples but it seems to break the transparency from my render. renderer = …